Roofing element.



w. A HARRIS ROOFING ELEMENT. APPLICATION FILED AuG...28, 1915.

Patented N' v, 19,1918;

INV NTEI W: LL! AM 3 so srnrn s sensors ost ich WILLIAM A. HARRIS, OF CEICAGQ, ILLINOIS, ASSIGNOE, BY MESNE ASSIGNMENTS, TO THE FLINTKOTE CQMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

ROOFING ELEMENT.

eeann. w

specification of Letters fatentf Patented Nov" 19, 1918.

Application filed August 28, 1315. Serial No. 47,781.

. of Illinois, haveinvented certain new and useful Improvements in Roofin Elements, 015 which the following is a speci cation.

This invention has relation to roofing ele-. mcnts, preferablymade of prepared flexible roofingmeterial adapted to be laid in horizontal overlapping rows to produce the effect of a shingled or tiled roof.

()n the drawings,-v F'gure 1 illustrates a roofing element, cons-istingofn shingle strip, embodying the invention, a like strip adjacent thereto bein shown in dotted lines.

Fig. 2 illustrates. a portion of a roof" formed of said strips.

Fig, 3 illustrates roofing elements in the form of individual shingles embodying the invention. 1

In tlie laying of roofing elements on the roof in simulation of wooden shingles or slate or other tiles, it'is desirable that the exposed portions in each row should be latwerully separated, or otherwise a plain sur face such as produced by clapboards would result. But, in order to prevent leaks and to increase the fire protectiomit is highly desirable that the lateral edges of the covin each row should be covered to prevent water from soaking or working down through them. as when the shingles, or the shinglelike tabs or projections in the several rows, are all in alinemcnt orregistration. 1

According to my invention, I form th roofing elements with an upper lateral projection on one side, and a lateral recess on the other side. In the particular embodiments illustrated the pro ection is in'width substantially double the distance laterally between the exposed'portions of the shingles or the tabs, and the recess being substantially equal to said distance. In laying .the elements, the projection on one side of one element pro ects into the recess on the other side of the next laterally adjacent element. 4

suitable fibrous foundation impregnated with asphalt or other waterproofing composition. and coated on one or both faces with a'harder pitch, asphalt or other Weatherproot' compositions. Ordinarily, though not necessarily, the coating may be colored by any suitable pigment, or else crushed mineral may be embedded in the coating while it is soft and plastic. The material is prepared in shect forrn, and may be cut into shingles or shingle strips or into other forms of roofing elements by any suitable machinery...

Referring to Figl, a shingle strip 10 is shown, having any dcsirednumber of tabs or projections 11 of any suitable configuration, separated laterally by spaces 12. These which however in Width is substantially equal to the distance between two adjacent tabs. When two shingle strips are placed side by side, as indicated by the dotted lines, one-halt of the projection 131 or" the strip 100 fits into the recess 14 of the strip 10, so that the oracle between the side edge of the projection and the edge wall of the recess tabs or projections constitute the portions 14 does not register with the recess 15 formed between the tabs 11 andflll .but is to one side thereof. Hence, even if the strips were laid shown in Fish 2, with the tabs registering in the several rows, the fourth tab a of the strip 7) of: the upper horizontal row covers the dotted line a of separation between the upper body portions of the strips (Z and c of the strips of the lower row, and practically seals it against the entrance of Water. ()rdinarily the strips are laid with the recesses in one row, breaking joint with the recesses of the next adjacent rows.

Single shingles may be formed with the corresponding lateral projections and 'recsssos as shown in Fig. 3. The shingle is shown at :20 and has the upper body portion :21 to be. concealed or covered and the lower I portion to be exposed when the shingles The roofing elements may cons st of any he projection and the recess is subsm may be,

The upper gortion has-on one side to grad u'ojoction on the other side roe The tiii'fsrenoe in width bot "noiaiiy oquai to the 25 Tootwon filo lower posed portions of two adjacent shingles.

By fonning siomen ts as *Ii'dSCFfiiT Efi i ile may be ssi'i no in'teriock, b0 some EK- tont, each pi'oiiousiy laid aioz'oonc serving as :1 iompioto iio iooiio omct'iy the next in;- oi'aiiy adjacent or cont" ions oiomom. corner of one iziierai pzojiootion fits in the ruminant angle foriiiod by tho recess in he nosi: adjacent element The chief advantage iosi ciing in time COH- st-rnoi ion which have described is that. where two adjacent eioinen'ts abut, the recess between .18 exposed por iions thereo is oioseri at no upper end by the lower cage of mo progoc zion or 23, silo case may oo Jbiih extends iscom 1 beyond Hie ro- "ens elements at the 0 1' portions f'heroof, does not open dirootiy into the or 25, as tho case tiioi'o being a shouidor extending across fine line of said crack.

iiiiifierzpiainod the osiziiio oi my said iiive iion anti {iosoribsci s of maltand I H :ough Without ii i b Lo o some, sit: oi'emp'tmg to foriisii oi airs forms 7 i What i. ciaim is:

"which it may be marie or oil of the moflos l UQ'fCI' portion having on one Sid-e a projec A 1 M A- non am? on the other side a to IGCOIVQ a like pmjeciion from theinoxt la orally adjacent oiemont, said projection being grenier in wiiith than said rooess whereby this expose-(i portions of mo intoisily adjacent oiomonts are spaced apart, and. said projection extends across and forms the upper wail of such space.

21 prepared flexible. woaihvrprooi roofoiement aiiapieci to he Mid with others in oi'oriapping rows in simulation of a tiled or shingied roof and consisting of a strip whose iowoz' portion is formed with lotoraiiy spaced tabs, and Whose upper portion has projection on one Rifle, anci on the other side recess to receive a like projoo tion on on odjaoent skip. the said. projection b the in width than said recess by mount substzmiinib equal io one of the 11 s sees between said tabs i1 PZGPQI'QCi weatherproof ioofing oio mono adapted i0 no 12nd .ililil others in oven looping rows in simulation of a tiled oi 1 1 n is oumoi pi timii, W axis 001 the two adjao nt tans thereof subsfantiaily oz 1 Width to one of the first-mentioned 

